Churn.



J. L. DANGERFIELD.

v GHURN.

' APPLICATION FILED JAN. 25, 1910. 9 3, 1 35., Patented Aug. 23, 1910.

"a I lcbm I UNITED STATES PATEN T OFFICE.

JOHN L. DANGERFIELD, OF PRINCETON, WEST VIRGINIA.

CHURN.

T 0 all whom it may concern:

Be it known that I, JOHN L. DANGER- FIELD, a citizen of the UnitedStates, residing at Princeton, in the county of Mercer and State of VestVirginia, have invented a new and useful Churn, of which the followingis a specification.

This invention relates to churns and has for an object to provide asimple actuating mechanism that will simultaneously rotate andreciprocate the churn dasher.

Another object is to provide an actuating mechanism that may be appliedto any churn and will be composed of a few simple parts that will noteasily get out of order.

To obtain the above ends the invention consists of certain novel detailsof construction and combination of parts which will be hereinafter morefully described and claimed.

In the accompanying drawing forming part of this specification, Figure 1is a side elevation of a churn equipped with my improved actuatingmechanism, the latter being shown partly in section. Fig. 2 is a frontelevation of a churn equipped with the improved actuating mechanism.Fig. 8 is an enlarged plan view of the dasher head. Fig. 4 is asectional view taken on the line AB Fig. 1. Fig. 5 is a fragmentalelevation of the reciprocating rod and the bracket in which it ismounted.

Referring now to the drawing in which like characters of referencedesignate similar parts in the views shown, 5 designates a churnreceptacle of the usual and well known kind. Within the receptacle iscarried a dasher comprising a tubular shaft 6 and a movable disk likehead 7 the latter being pierced by a plurality of openings 8 whichpermit the flow of milk through the head when the latter isreciprocated. Disposed upon the top face of the dasher head is aplurality of radial blades 9 which are provided with suitable openings10 which permit the flow of milk through the blades when the dasher isrotating. Carried within the bore of the tubular shaft 6 is a rod 11which is threaded on its lower extremity and provided with a retainingnut 12 that holds the head 7 in position, the rod being Specification ofLetters Patent.

Application filed January 25, 1910.

Patented Aug. 23, 1910. Serial No. 540,009.

rigidly secured to the bore of the shaft by friction collars 13 or otherequivalent means. i

It is not intended to limit the construction of the dasher to the formabove described as the above is of the ordinary kind and forms no partof the present invention. For actuating a dasher of this kind in a churnreceptacle I provide a mechanism which will now be described. Mountedupon the top of the receptacle is a bracket 14 having at its lower end acircular collar 15 which is adapted to be tightly wedged upon the outerperiphery of the churn and secured in position thereupon by a set screw16. The upper end of the bracket is provided with a suitable bearing toengage the free end of the rod 11 as shown. Journaled in a suitablebearing in the bracket 14 is a horizontal stub shaft 17 having keyed orotherwise rigidly secured to one end a gear wheel 18, and is suitablyformed at its opposite end to receive a crank 19 or other suitableactuating means. A pitman 20 is swiveled at one end on a spoke of theactuating gear and at its opposite end on the dasher rod 11 above thecenter of the gear, this pitman imparting a reciprocating movement tothe dasher rod when the gear 18 is rotated.

A pinion 21 is keyed or otherwise rigidly secured upon the dasher shaft6 and is of such length as to be in mesh with the teeth of the actuatinggear at every point in the stroke of the dasher shaft. The teeth of thepinion 21 must be of such size as to be easily slid vertically betweenthe teeth of the gear 18 when the latter is rotated without binding ofthe parts, and without lost motion during this movement. A particularmethod of accomplishing this is to form the teeth of the pinion 21 ofpins as shown and the teeth 18 of the gear of lugs or stub pins sospaced apart that any particular tooth when in mesh with the pinion willnot completely fill up the space between the pinion teeth, thisconstruction giving a little play to the parts to prevent any tendencyto bind when in operation. It is not intended to limit the constructionof either the actuating gear or pinion to the form illustrated and anyform of gear that will affect the desired movement of the parts may beemployed. An arm 22 is secured at one end to the bracket 14; and isprovided at its free end with a suitable bearing box 23 for retainingthe dasher shaft 6 and maintaining the latter in proper position. Thepinion 21 rests upon the arm 22, the arm 22 thus constituting a meansfor upholding the dasher within the receptacle in which it is mounted.

As shown in Fig. 5, the rod 11 may be provided with a plurality ofopenings 40. These openings are adapted to receive successively one endof the pitman 20, so thatthe dasher may be raised or lowered toaccommodate a large or a relatively small churning. As seen in Fig. 2one of the arms 50 of the gear wheel 18 is provided with a plurality ofopenings 60, adapted to receive successively the other end of the pitman20. By this construction the length of the stroke which is made by thedasher of the churn, may be varied to suit the exigencies of theparticular case.

From the foregoing description taken in connection with the accompanyingdrawing it is thought that the construction and operation of myinvention will be easily understood without a more extended explanationit being understood that various changes in the form, proportion, andminor details of construction may be made within the scope of what isclaimed.

As seen best in Fig. l, the structure includes an inclined brace, thelower end of which is secured to the bracket 14, the upper end of whichis adapted to serve as a bearing for the stub shaft 17. Moreover, theupper end of this inclined brace 40, bears against the gear wheel '18,and serves to maintain the same in mesh with the pinion 21.

-What is claimed is A device of the class described comprising abracket; means upon the lower end of the bracket for securing the sameto a churn receptacle; a tubular shaft; a dasher head disposed upon thelower end of the shaft; an arm secured at one end to the bracket and atthe other end provided with a bearing to receive the tubular shaft; apinion secured" to the tubular shaft and resting upon the arm; a rodjournaled at its upper end in the bracket, the rod being extendedthrough the shaft and through the dasher head; means upon the lower endof the rod for binding the dasher head against the tubular shaft;friction collars uniting the rod with the tubular shaft againstindependent movement; a stub shaft journaled for rotation in thebracket; a gear wheel upon the stub shaft and meshing slidably with thepinion to secure both a rotary movement and a longitudinal reciprocationof the tubular shaft and the dasher rod; an inclined brace secured atits lower end to the bracket and having its upper end constituting abearing for the stub shaft, the brace bearing against the gear wheel tohold the same in mesh with the pinion; and a pitman adjustablyconnecting the rod and the gear wheel.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

JOHN L. DANGERFIELD.

WVitnesses JOHN R. PENDLETON, EULALIA ScoT'r.

